Challenges with plastic parts for liquid gas applications
Anyone responsible for product development or purchasing in the liquefied gas industry knows the stumbling blocks: Components have to withstand high mechanical loads, temperature fluctuations and sometimes aggressive media. At the same time, absolute dimensional accuracy, permanent tightness and safe handling are mandatory. When it comes to components such as protective caps, closures or threaded parts, every detail determines function, safety and market acceptance.
However, there is often a lack of reliable partners who not only injection mold technical plastic parts, but also think along with the development process. Where can I find a supplier who reacts quickly, manufactures in accordance with standards and doesn't lose their nerve even with complex geometries or overmolding?
Plastic injection molding precisely tailored to liquefied gas requirements
We support projects from the idea to series production - with plastic injection molding and mechanical plastic processing, just as the liquefied gas industry needs it. Our focus is on safety-critical plastic components that function absolutely reliably - even under high stress, adverse environmental conditions or large quantities.
We work closely with your development team to produce robust, ready-to-assemble components: Whether a red protective cap for propane gas cylinders, a black screw cap with an integrated seal or 2K components with soft sealing components - we provide suitable solutions that fit.
Our services include
- Development and design (incl. mold flow analysis, filling simulation, warpage prediction)
- In-house mold construction
- 1K and 2K injection molding up to 13,000 kN
- Overmolding of metal inserts, seals or threads
- CNC milling, turning, grinding, welding
- Component assembly, printing, engraving and packaging
- Quality assurance in accordance with DIN EN ISO 9001, 14001, 50001
Advantages for the liquefied gas industry
- Precisely fitting function - thanks to tight manufacturing tolerances and 100% component testing
- Durable materials - such as PA6, PP, POM or PTFE, also in reinforced versions
- Secure hold and tightness - thanks to precise contouring and high-quality sealing geometries
- Standard-compliant production - including test reports, documentation and series release
- Calculable unit costs - thanks to efficient tools and economical processes
Reliable delivery - thanks to automated production, just-in-time logistics and high stock availability
From the protective cap to the connection cover
You will encounter our manufactured plastic components in everyday life more often than you think. An excerpt of typical projects for customers in the liquid gas industry:
- Red protective cap for gas cylinders - strong signal, impact-resistant, temperature-resistant
- Black screw cap with thread - optionally with soft seal or integrated locking tab
- Protective cap for cylinder valves - deep-drawn shape with internal damper ribs
- Transport cap for connection valves - impact-resistant geometry with latching lug
- 2K sealing protection ring - soft lip seal injection-molded onto hard core
- Ready-to-install cap - including engraving, hole pattern and serial number
Many projects start with us as a sketch - and end in standard-compliant series production with over 100,000 units per year.
Why our plastic solutions for liquid gas work so well
Our expertise in plastic injection molding goes back over 60 years - but we do not rest on our laurels. The decisive factor is that we understand our customers' real-life applications. This means that we think from the user's point of view, not from the machine's point of view.
What counts with liquid gas products:
- Resistance to breakage despite temperature fluctuations
- Media resistance to oil, water and chemicals
- User-friendliness and haptic quality
- Process reliability - even in 3-shift operation
That's why we combine robust engineering with precise processing, documented quality and clear project management. And yes - we can even deliver overnight if necessary.
Lahme GmbH - Your specialist for liquid gas plastic parts
We are an owner-managed company based in Kierspe, NRW. As a full-service partner in plastics technology, we produce technical plastic parts for industries with the highest requirements - from the automotive to the liquefied gas industry.
What sets us apart:
- Over 50 injection moulding machines from 12.5 to 1,300 tons
- In-house toolmaking, development and assembly
- Certified production according to ISO 9001, 14001, 50001
- Highly automated processes with robotics & camera inspection
- Flexible series sizes from 500 to over 1 million units
Our customers value the combination of reliability, transparency and technical expertise - and we value the direct line to the people we work with.
Your liquid gas components made of plastic - we are ready
Do you need reliable plastic parts for your liquid gas products?
Whether it's a new project, series relocation or short-term replacement production - we are
we are ready and waiting.
Get in touch with us directly.
Use our inquiry form - we will get back to you personally.
Plastic injection molding for liquefied gas - everything from a single source
Plastic injection molding for liquefied gas - everything from a single source
Safety-relevant components for the liquefied gas industry require more than just an injection mold - they need understanding, care and forward-looking project management. This is exactly what we offer.
- We deliver exactly the right plastic solutions
- We think in terms of projects, not just quantities
- We take responsibility - from development to packaging
You can rely on a partner who really understands liquid gas - in plastic.
FAQ - Plastic injection molding for the liquefied gas industry